diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/interpolate_neml2_out.csv b/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/interpolate_neml2_out.csv
deleted file mode 100644
index 6c8fdd4e392f..000000000000
--- a/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/interpolate_neml2_out.csv
+++ /dev/null
@@ -1,244 +0,0 @@
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diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/laromance_interpolate_out.csv b/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/laromance_interpolate_out.csv
new file mode 100644
index 000000000000..9fa2e2fefd70
--- /dev/null
+++ b/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/laromance_interpolate_out.csv
@@ -0,0 +1,42 @@
+time,cell_rate_pp,creep_rate_pp,wall_rate_pp
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+3,-42109092284.262,4.2216606084145e-07,-4227113320251.4
+4,-42231727866.598,4.2024795277076e-07,-4215484933420.8
+5,-42142295209.86,4.2136074835583e-07,-4213003913980.5
+6,-42573652849.175,4.2317577807027e-07,-4214258165836
+7,-42454195440.833,4.2080234343204e-07,-4211720851646.3
+8,-42317047235.091,4.2010712929704e-07,-4215606999097.8
+9,-42355117821.36,4.2072173866867e-07,-4229447716385
+10,-42219218033.228,4.2211180354687e-07,-4205846132854.9
+11,-42211558037.578,4.2185258771244e-07,-4208158704369.6
+12,-42156872788.611,4.2033205176427e-07,-4228477337973.6
+13,-42123433155.27,4.2240121377655e-07,-4205876545645.9
+14,-42126145035.548,4.2208496354586e-07,-4207725387482.4
+15,-42218844877.048,4.2344127934903e-07,-4203575365297.7
+16,-42259889086.117,4.205899727181e-07,-4217061875107.7
+17,-42094599274.415,4.1959015749765e-07,-4214598024848.5
+18,-42444095979.827,4.2282615664942e-07,-4205905367002
+19,-42211228727.561,4.2031926784048e-07,-4218697255281.4
+20,-42111676449.141,4.2034297820936e-07,-4209543835730.6
+21,-42010813703.796,4.2073014350306e-07,-4192553751417.9
+22,-41932199567.033,4.176872761873e-07,-4219171146630.4
+23,-42000647886.087,4.1843478963794e-07,-4212239712698.6
+24,-41972147592.007,4.1886008480223e-07,-4205742331794.8
+25,-42068167350.667,4.1814458586552e-07,-4221474578436.2
+26,-42146797100.771,4.1945541341153e-07,-4203001845813.9
+27,-42454375934.175,4.2090187088464e-07,-4213185070222.3
+28,-42101039091.29,4.2147929207766e-07,-4214513956876.6
+29,-42198122746.071,4.2195521921878e-07,-4219755634051.2
+30,-42055371440.046,4.1743234109595e-07,-4200089740975.3
+31,-42209014112.924,4.1830517771037e-07,-4206498438126.3
+32,-42205952677.998,4.1904881899062e-07,-4236775455426.8
+33,-42008824114.596,4.2189089395938e-07,-4208047732435.1
+34,-42333385503.743,4.2161118560059e-07,-4190985409622
+35,-42166476802.392,4.2090325932611e-07,-4191388344770.9
+36,-42088256118.265,4.2102176478713e-07,-4223829034857.2
+37,-42130104886.175,4.2261251444015e-07,-4204867197224.3
+38,-42284741716.963,4.2249431481989e-07,-4204473064234.3
+39,-42139429883.495,4.2156465614387e-07,-4230255228147.6
+40,-42091475360.316,4.2196401632668e-07,-4213715442098.9
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/laromance_return_mapping_out.csv b/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/laromance_return_mapping_out.csv
new file mode 100644
index 000000000000..f6a5ad719861
--- /dev/null
+++ b/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/laromance_return_mapping_out.csv
@@ -0,0 +1,12 @@
+time,eff_inelastic_strain,eff_inelastic_strain_rate,rhoi_dd,rhoi_rate,rhom_dd,rhom_rate,time,vm_stress
+0,0,0,0,0,0,0,0,0
+50,2.1288109000134e-05,4.2576516264211e-07,-2.0085109787623e+14,-4177021957524.7,-2003866443123,-42077328862.459,50,200.1455951268
+100,4.2174683509191e-05,4.1772195232349e-07,-4.7533143064197e+14,-5489606655314.8,-3387585189894.5,-27674374935.43,100,200.14976963474
+150,6.0448962175379e-05,3.6550773432592e-07,-7.5614509267158e+14,-5616273240592.1,-3910882316503.1,-10465942532.173,150,200.15340405202
+200,7.4808026354285e-05,2.8737107710464e-07,-9.6423096423369e+14,-4161717431242.3,-3990751049700.1,-1597374663.94,200,200.15628913365
+250,8.6016841720952e-05,2.240997931993e-07,-1.0880715263382e+15,-2476811242089.7,-3992686852417.8,-38716054.353875,250,200.15852548302
+300,9.513215727738e-05,1.8222146536574e-07,-1.153740184199e+15,-1313373157217,-3992480375520,4129537.9571758,300,200.1603516595
+350,0.00010331284019182,1.6357673813493e-07,-1.1964462923487e+15,-854122162993.04,-3987487697223.3,99853565.933719,350,200.16199516742
+400,0.00011149432426795,1.6353054199097e-07,-1.2392605744227e+15,-856285641480.9,-3978748616543.4,174781613.59797,400,200.16363031459
+450,0.00011969711111798,1.6395975812156e-07,-1.2824890245576e+15,-864569002696.81,-3964846869192.8,278034947.01123,450,200.16527288648
+500,0.00012794585879082,1.648818861259e-07,-1.3264660121328e+15,-879539751505.4,-3944180421077.4,413328962.30746,500,200.1669247273
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/moose_neml2_return_mapping_out.csv b/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/moose_neml2_return_mapping_out.csv
deleted file mode 100644
index 38943ff6c378..000000000000
--- a/modules/solid_mechanics/test/tests/neml2/interpolated_material/gold/moose_neml2_return_mapping_out.csv
+++ /dev/null
@@ -1,22 +0,0 @@
-time,creep_rate,effective_plastic_strain,rhoi_dd,rhoi_rate,rhom_dd,rhom_rate,run_time,vm_stress
-0,0,0,0,0,0,0,0,0
-5,4.2277708213724e-07,2.1138854106862e-06,-12793686561648,-4158737312329.6,-113922735660.74,-42784547132.147,0.469396458,200.1256976633
-10,4.1175336029305e-07,4.1726522121514e-06,-33824182837666,-4206099255203.5,-329328661317.91,-43081185131.435,0.678594833,200.12610980428
-15,4.0040163049316e-07,6.1746603646172e-06,-55182171473509,-4271597727168.7,-546267293943.24,-43387726525.066,0.888049625,200.12651058324
-20,3.8882810039932e-07,8.1188008666139e-06,-76966624825491,-4356890670396.3,-764807861466.79,-43708113504.709,1.094893083,200.12689977818
-25,3.7711855720875e-07,1.0004393652658e-05,-99286853120589,-4464045659019.7,-985040673340.21,-44046562374.685,1.301359541,200.12727725284
-30,3.6533978836619e-07,1.1831092594489e-05,-1.2226504697163e+14,-4595638770207.7,-1207078922530.7,-44407649838.091,1.507777083,200.12764293796
-35,3.5354097561804e-07,1.3598797472579e-05,-1.4603946577007e+14,-4754883759687.9,-1431061039442,-44796423382.262,1.715357,200.12799681345
-40,3.4175493867255e-07,1.5307572165941e-05,-1.7076848091187e+14,-4945803028359.8,-1657153752042.9,-45218542520.186,1.92039475,200.12833889207
-45,3.299991285005e-07,1.6957567808443e-05,-1.9663576556947e+14,-5173456931519.8,-1885556055328.8,-45680460657.184,2.124694541,200.12866920399
-50,3.1827628393817e-07,1.8548949228133e-05,-2.238570440091e+14,-5444255687927.5,-2116504363928.6,-46189661719.954,2.328796708,200.12898778219
-55,3.0657466860734e-07,2.0081822571167e-05,-2.5268899448461e+14,-5766390095101.9,-2350279224690,-46754972152.283,2.533850958,200.12929464799
-60,2.9486779806146e-07,2.155616156147e-05,-2.8344117539469e+14,-6150436182014.4,-2587214118120.3,-47386978686.064,2.74153775,200.12958979596
-65,2.8311354911714e-07,2.2971729307049e-05,-3.1649227340364e+14,-6610219601791.2,-2827707105724.8,-48098597520.887,2.949442083,200.12987317872
-70,2.7125251409185e-07,2.4327991877498e-05,-3.5231265622839e+14,-7164076564949.3,-3072236429641.7,-48905864783.391,3.154327416,200.13014468938
-75,2.5920542243359e-07,2.5624018989649e-05,-3.9149633302495e+14,-7836735359312.6,-3321381718654,-49829057802.466,3.36041825,200.13040414166
-80,2.4686940409552e-07,2.6858366010102e-05,-4.3480731604282e+14,-8662196603574.5,-3575853336641.7,-50894323597.523,3.565743958,200.13065124632
-85,2.3411282426443e-07,2.8028930131387e-05,-4.8324867885904e+14,-9688272563243.4,-3836533874359.9,-52136107543.644,3.777863375,200.13088558235
-90,2.207684101541e-07,2.9132772182107e-05,-5.3816859982575e+14,-10983984193341,-4104538305427.9,-53600886213.604,3.993558583,200.13110656139
-95,2.0662450256032e-07,3.0165894694839e-05,-6.0142905522056e+14,-12652091078964,-4381303842310.5,-55353107376.517,4.209824541,200.13131338313
-100,1.9141471140455e-07,3.1122968251771e-05,-6.7568556947679e+14,-14851302851245,-4668729008245.1,-57485033186.923,4.417207625,200.13150498063
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/interpolate_neml2.i b/modules/solid_mechanics/test/tests/neml2/interpolated_material/laromance_interpolate.i
similarity index 97%
rename from modules/solid_mechanics/test/tests/neml2/interpolated_material/interpolate_neml2.i
rename to modules/solid_mechanics/test/tests/neml2/interpolated_material/laromance_interpolate.i
index 7bd9b62e53e1..02b56cb533e4 100644
--- a/modules/solid_mechanics/test/tests/neml2/interpolated_material/interpolate_neml2.i
+++ b/modules/solid_mechanics/test/tests/neml2/interpolated_material/laromance_interpolate.i
@@ -87,7 +87,7 @@ sample_file = "models/sampled_combinations.csv"
 []
 
 [NEML2]
-  input = 'models/interpolation_material.i'
+  input = 'models/laromance_matl_interp.i'
   [all]
     model = 'combined_model'
     verbose = true
@@ -108,7 +108,7 @@ sample_file = "models/sampled_combinations.csv"
   nl_abs_tol = 1e-1 # Nothing is really being solved here, so loose tolerances are okay
   dt = 1
   dtmin=1
-  end_time = 3 #242
+  end_time = 40 #242
   timestep_tolerance = 1e-3
 []
 
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/laromance_return_mapping.i b/modules/solid_mechanics/test/tests/neml2/interpolated_material/laromance_return_mapping.i
new file mode 100644
index 000000000000..3a17303276bf
--- /dev/null
+++ b/modules/solid_mechanics/test/tests/neml2/interpolated_material/laromance_return_mapping.i
@@ -0,0 +1,166 @@
+# NEML2 file in MPA
+[Mesh]
+  [gmg]
+    type = GeneratedMeshGenerator
+    dim = 3
+    nx = 5
+    ny = 5
+    nz = 5
+  []
+[]
+
+[GlobalParams]
+  displacements = 'disp_x disp_y disp_z'
+[]
+
+[Physics]
+  [SolidMechanics]
+    [QuasiStatic]
+      [all]
+        strain = SMALL
+        new_system = true
+        add_variables = true
+        formulation = TOTAL
+        volumetric_locking_correction = true
+      []
+    []
+  []
+[]
+
+[BCs]
+  [xfix]
+    type = DirichletBC
+    variable = disp_x
+    boundary = left
+    value = 0
+  []
+  [yfix]
+    type = DirichletBC
+    variable = disp_y
+    boundary = bottom
+    value = 0
+  []
+  [zfix]
+    type = DirichletBC
+    variable = disp_z
+    boundary = back
+    value = 0
+  []
+  [pressure_x]
+    type = Pressure
+    variable = disp_x
+    boundary = right
+    function = pressure_fcn
+  []
+[]
+
+# -- interpolation grids in  'models/random_value_grid.json'
+# "in_stress": [0.0, 30, 60, 100, 130, 160, 200, 230, 260, 320.0],
+# "in_temperature": [600, 650, 750, 800, 850, 900, 950, 1000, 1100, 1200.0],
+# "in_plastic_strain": [0.0, 0.0001, 0.001, 0.01],
+# "in_cell": [1000000.0, 10000000000000.0],
+# "in_wall": [1000000000000.0, 10000000000000.0],
+# "in_env": [1e-09, 1e-06],
+
+[Functions]
+  [pressure_fcn]
+    type = ParsedFunction
+    expression = 200 #MPa
+  []
+[]
+[Materials]
+  [init_dd]
+    type = GenericConstantMaterial
+    prop_names = 'T init_cell_dd init_wall_dd init_envFac'
+    prop_values = '750 1e11 8e12 2e-8'
+  []
+[]
+
+[NEML2]
+  input = 'models/laromance_matl_radial_return.i'
+  [all]
+    model = 'model'
+    verbose = true
+    device = 'cpu'
+
+    moose_input_types = 'MATERIAL MATERIAL MATERIAL MATERIAL MATERIAL MATERIAL MATERIAL POSTPROCESSOR POSTPROCESSOR'
+    moose_inputs =      'T        neml2_strain inelastic_strain eff_inelastic_strain cell_dd           wall_dd           init_envFac    time     time'
+    neml2_inputs =      'forces/T forces/E     old_state/Ep     old_state/ep         old_state/cell_dd old_state/wall_dd forces/env_fac forces/t old_forces/t'
+
+    moose_output_types = 'Material MATERIAL MATERIAL MATERIAL MATERIAL MATERIAL MATERIAL MATERIAL MATERIAL'
+    moose_outputs =      'neml2_stress inelastic_strain eff_inelastic_strain eff_inelastic_strain_rate vonmises_stress cell_rate       wall_rate       cell_dd       wall_dd'
+    neml2_outputs =      'state/S      state/Ep         state/ep             state/ep_rate             state/s         state/cell_rate state/wall_rate state/cell_dd state/wall_dd'
+
+    initialize_outputs =       'wall_dd      cell_dd      init_envFac'
+    initialize_output_values = 'init_wall_dd init_cell_dd init_envFac'
+
+    moose_derivative_types = 'MATERIAL'
+    moose_derivatives = 'neml2_jacobian'
+    neml2_derivatives = 'state/S forces/E'
+  []
+[]
+
+[Materials]
+  [convert_strain]
+    type = RankTwoTensorToSymmetricRankTwoTensor
+    from = 'mechanical_strain'
+    to = 'neml2_strain'
+  []
+  [stress]
+    type = ComputeLagrangianObjectiveCustomSymmetricStress
+    custom_small_stress = 'neml2_stress'
+    custom_small_jacobian = 'neml2_jacobian'
+  []
+[]
+
+[Executioner]
+  type = Transient
+  solve_type = NEWTON
+  petsc_options_iname = '-pc_type'
+  petsc_options_value = 'lu'
+  automatic_scaling = true
+  nl_rel_tol = 1e-5
+  dt = 50
+  dtmin = 50
+  num_steps = 10
+  residual_and_jacobian_together = true
+[]
+
+[Postprocessors]
+  [time]
+    type = TimePostprocessor
+    execute_on = 'INITIAL TIMESTEP_BEGIN'
+  []
+  [eff_inelastic_strain]
+    type = ElementAverageMaterialProperty
+    mat_prop = eff_inelastic_strain
+  []
+  [eff_inelastic_strain_rate]
+    type = ElementAverageMaterialProperty
+    mat_prop = eff_inelastic_strain_rate
+  []
+  [rhom_rate]
+    type = ElementAverageMaterialProperty
+    mat_prop = cell_rate
+  []
+  [rhoi_rate]
+    type = ElementAverageMaterialProperty
+    mat_prop = wall_rate
+  []
+  [rhom_dd]
+    type = ElementAverageMaterialProperty
+    mat_prop = cell_dd
+  []
+  [rhoi_dd]
+    type = ElementAverageMaterialProperty
+    mat_prop = wall_dd
+  []
+  [vm_stress]
+    type = ElementAverageMaterialProperty
+    mat_prop = vonmises_stress
+  []
+[]
+
+[Outputs]
+  csv = true
+[]
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/models/interpolation_material.i b/modules/solid_mechanics/test/tests/neml2/interpolated_material/models/laromance_matl_interp.i
similarity index 100%
rename from modules/solid_mechanics/test/tests/neml2/interpolated_material/models/interpolation_material.i
rename to modules/solid_mechanics/test/tests/neml2/interpolated_material/models/laromance_matl_interp.i
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/models/interp_matl_radial_return.i b/modules/solid_mechanics/test/tests/neml2/interpolated_material/models/laromance_matl_radial_return.i
similarity index 94%
rename from modules/solid_mechanics/test/tests/neml2/interpolated_material/models/interp_matl_radial_return.i
rename to modules/solid_mechanics/test/tests/neml2/interpolated_material/models/laromance_matl_radial_return.i
index 66b5929a0391..2fd6635a2cdc 100644
--- a/modules/solid_mechanics/test/tests/neml2/interpolated_material/models/interp_matl_radial_return.i
+++ b/modules/solid_mechanics/test/tests/neml2/interpolated_material/models/laromance_matl_radial_return.i
@@ -1,4 +1,3 @@
-# HT9 Lafleur model input
 # UNITS are MPa
 [Solvers]
   [newton]
@@ -20,13 +19,13 @@
   []
   [cauchy_stress]
     type = LinearIsotropicElasticity
-    youngs_modulus = 170e3 #MPa
-    poisson_ratio = 0.266
+    coefficient_types = 'YOUNGS_MODULUS POISSONS_RATIO' #MPa
+    coefficients = '170e3 0.3'
     strain = 'state/Ee'
     stress = 'state/S'
   []
   [flow_direction]
-    type = J2FlowDirection
+    type = AssociativeJ2FlowDirection
     mandel_stress = 'state/S'
     flow_direction = 'forces/N'
   []
@@ -85,7 +84,8 @@
     # grid nodes
     von_mises_stress = 'state/s'
     equivalent_plastic_strain = 'state/ep'
-    # fixme lynn sort out forces from old_forces from state.  wall & cell_dd should be old_forces.  env_fac never changes.
+    # fixme lynn sort out forces from old_forces from state.
+    # wall & cell_dd should be old_forces.  env_fac never changes.
     cell_dd_density = 'old_state/cell_dd'
     wall_dd_density = 'old_state/wall_dd'
     temperature = 'forces/T'
@@ -160,7 +160,7 @@
   []
 
   #####################################################################################
-  # Put the models together (this is called by Bison)
+  # Put the models together
   #####################################################################################
   [model]
     type = ComposedModel
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/moose_neml2_return_mapping.i b/modules/solid_mechanics/test/tests/neml2/interpolated_material/moose_neml2_return_mapping.i
deleted file mode 100644
index b2f0e44700da..000000000000
--- a/modules/solid_mechanics/test/tests/neml2/interpolated_material/moose_neml2_return_mapping.i
+++ /dev/null
@@ -1,256 +0,0 @@
-# NEML2 file in MPA
-[Mesh]
-  [gmg]
-    type = GeneratedMeshGenerator
-    dim = 3
-    nx = 5
-    ny = 5
-    nz = 5
-  []
-[]
-
-[GlobalParams]
-  displacements = 'disp_x disp_y disp_z'
-[]
-
-[Physics]
-  [SolidMechanics]
-    [QuasiStatic]
-      [all]
-        strain = SMALL
-        new_system = true
-        add_variables = true
-        formulation = TOTAL
-        volumetric_locking_correction = true
-      []
-    []
-  []
-[]
-
-[BCs]
-  [xfix]
-    type = DirichletBC
-    variable = disp_x
-    boundary = left
-    value = 0
-  []
-  [yfix]
-    type = DirichletBC
-    variable = disp_y
-    boundary = bottom
-    value = 0
-  []
-  [zfix]
-    type = DirichletBC
-    variable = disp_z
-    boundary = back
-    value = 0
-  []
-  [pressure_x]
-    type = Pressure
-    variable = disp_x
-    boundary = right
-    function = pressure_fcn
-  []
-[]
-
-# -- interpolation grids in  'models/random_value_grid.json'
-# "in_stress": [0.0, 30, 60, 100, 130, 160, 200, 230, 260, 320.0],
-# "in_temperature": [600, 650, 750, 800, 850, 900, 950, 1000, 1100, 1200.0],
-# "in_plastic_strain": [0.0, 0.0001, 0.001, 0.01],
-# "in_cell": [1000000.0, 10000000000000.0],
-# "in_wall": [1000000000000.0, 10000000000000.0],
-# "in_env": [1e-09, 1e-06],
-
-[Functions]
-  [pressure_fcn]
-    type = ParsedFunction
-    expression = 200 #MPa
-  []
-[]
-[AuxVariables]
-  [T]
-    initial_condition = 750 #K
-  []
-[]
-[Materials]
-  [init_dd]
-    type = GenericConstantMaterial
-    prop_names = 'init_cell_dd init_wall_dd init_envFac'
-    prop_values = '1e11 8e12 2e-8'
-  []
-[]
-
-[NEML2]
-  # this is a NEML2 model definition, located under bison/data
-  input = 'models/interp_matl_radial_return.i'
-  model = 'model'
-  verbose = true
-  mode = PARSE_ONLY
-  device = 'cpu'
-  enable_AD = true
-[]
-
-[UserObjects]
-  [temperature]
-    type = MOOSEVariableToNEML2
-    moose_variable = T
-    neml2_variable = forces/T
-  []
-  [envFac]
-    type = MOOSERealMaterialPropertyToNEML2
-    moose_material_property = init_envFac
-    neml2_variable = forces/env_fac
-  []
-
-  [strain]
-    type = MOOSERankTwoTensorMaterialPropertyToNEML2
-    moose_material_property = mechanical_strain
-    neml2_variable = forces/E
-  []
-  [input_old_Ep]
-    type = MOOSEOldSymmetricRankTwoTensorMaterialPropertyToNEML2
-    moose_material_property = plastic_strain
-    neml2_variable = old_state/Ep
-  []
-  [input_old_ep]
-    type = MOOSEOldRealMaterialPropertyToNEML2
-    moose_material_property = effective_plastic_strain
-    neml2_variable = old_state/ep
-  []
-
-  [old_cell_dd]
-    type = MOOSEOldRealMaterialPropertyToNEML2
-    moose_material_property = cell_dd
-    neml2_variable = old_state/cell_dd
-  []
-  [old_wall_dd]
-    type = MOOSEOldRealMaterialPropertyToNEML2
-    moose_material_property = wall_dd
-    neml2_variable = old_state/wall_dd
-  []
-
-  [model]
-    type = ExecuteNEML2Model
-    model = model
-    gather_uos = 'temperature strain input_old_Ep input_old_ep envFac old_cell_dd old_wall_dd'
-    enable_AD = true
-  []
-[]
-
-[Materials]
-  [neml2_stress_jacobian]
-    type = NEML2StressToMOOSE
-    execute_neml2_model_uo = model
-    neml2_stress_output = state/S
-    neml2_strain_input = forces/E
-  []
-  [neml2_flow_rate]
-    type = NEML2ToSymmetricRankTwoTensorMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/Ep
-    moose_material_property = accumulated_inelastic_strain
-  []
-  [stateful_Ep]
-    type = NEML2ToSymmetricRankTwoTensorMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/Ep
-    moose_material_property = plastic_strain
-  []
-  [stateful_ep]
-    type = NEML2ToRealMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/ep
-    moose_material_property = effective_plastic_strain
-  []
-  [stateful_ep_rate]
-    type = NEML2ToRealMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/ep_rate
-    moose_material_property = effective_plastic_strain_rate
-  []
-  [stateful_vm_stress]
-    type = NEML2ToRealMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/s
-    moose_material_property = vonmises_stress
-  []
-  [cell_rate]
-    type = NEML2ToRealMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/cell_rate
-    moose_material_property = cell_rate
-  []
-  [wall_rate]
-    type = NEML2ToRealMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/wall_rate
-    moose_material_property = wall_rate
-  []
-  [cell_dd]
-    type = NEML2ToRealMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/cell_dd
-    moose_material_property = cell_dd
-    moose_material_property_init = init_cell_dd
-  []
-  [wall_dd]
-    type = NEML2ToRealMOOSEMaterialProperty
-    execute_neml2_model_uo = model
-    neml2_variable = state/wall_dd
-    moose_material_property = wall_dd
-    moose_material_property_init = init_wall_dd
-  []
-[]
-
-[Executioner]
-  type = Transient
-  solve_type = NEWTON
-  petsc_options_iname = '-pc_type'
-  petsc_options_value = 'lu'
-  automatic_scaling = true
-  dt = 5
-  dtmin = 5
-  num_steps = 100
-  residual_and_jacobian_together = true
-[]
-
-[Postprocessors]
-  [effective_plastic_strain]
-    type = ElementAverageMaterialProperty
-    mat_prop = effective_plastic_strain
-  []
-  [creep_rate]
-    type = ElementAverageMaterialProperty
-    mat_prop = effective_plastic_strain_rate
-  []
-  [rhom_rate]
-    type = ElementAverageMaterialProperty
-    mat_prop = cell_rate
-  []
-  [rhoi_rate]
-    type = ElementAverageMaterialProperty
-    mat_prop = wall_rate
-  []
-  [rhom_dd]
-    type = ElementAverageMaterialProperty
-    mat_prop = cell_dd
-  []
-  [rhoi_dd]
-    type = ElementAverageMaterialProperty
-    mat_prop = wall_dd
-  []
-  [vm_stress]
-    type = ElementAverageMaterialProperty
-    mat_prop = vonmises_stress
-  []
-  [run_time]
-    type = PerfGraphData
-    section_name = "Root"
-    data_type = total
-  []
-[]
-
-[Outputs]
-  csv = true
-[]
diff --git a/modules/solid_mechanics/test/tests/neml2/interpolated_material/tests b/modules/solid_mechanics/test/tests/neml2/interpolated_material/tests
index 908bb72f3b27..4346793027ab 100644
--- a/modules/solid_mechanics/test/tests/neml2/interpolated_material/tests
+++ b/modules/solid_mechanics/test/tests/neml2/interpolated_material/tests
@@ -1,17 +1,17 @@
 [Tests]
   design = '?'
-  issues = '?'
-  requirement = "The system shall use an interpolation grid in NEML2"
-  [radialReturn]
+  issues = '#29774'
+  requirement = "The system shall use a LAROMANCE interpolation grid in NEML2 "
+  [interpolate]
     type = 'CSVDiff'
-    input = 'moose_neml2_return_mapping.i'
-    csvdiff = 'moose_neml2_return_mapping_out.csv'
-    detail = "to solve for the creep and dislocation density rates in a radial return mapping."
+    input = 'laromance_interpolate.i'
+    csvdiff = 'laromance_interpolate_out.csv'
+    detail = "to sample cell and wall dislocation density rate and inelastic strain rate from the the 6D input grid."
   []
-  [interpolate]
+  [radialReturn]
     type = 'CSVDiff'
-    input = 'moose_neml2_return_mapping.i'
-    csvdiff = 'interpolate_neml2_out.csv'
-    detail = "to interpolate for creep dislocation density rates in a radial return mapping."
+    input = 'laromance_return_mapping.i'
+    csvdiff = 'laromance_return_mapping_out.csv'
+    detail = "to solve for the nonlinear material response in NEML2 using the radial return mapping."
   []
 []